[Sony Xperia P, U, Sola, Go] samuelrf:
have you rea the build.prop? is very strange, look:

# begin build properties

# autogenerated by buildinfo.sh

ro.build.id=JZO54K

ro.build.display.id=jellybam_kumquat-userdebug 4.1.2 JZO54K eng.root.20130116.225941 test-keys

ro.build.version.incremental=eng.root.20130116.225941

ro.build.version.sdk=16

ro.build.version.codename=REL

ro.build.version.release=4.1.2

ro.build.date=Wed Jan 16 23:02:13 CET 2013

ro.build.date.utc=1358373733

ro.build.type=userdebug

ro.build.user=root

ro.build.host=ks308284.kimsufi.com

ro.build.tags=test-keys

ro.product.model=Xperia U

ro.product.brand=Sony

ro.product.name=ST25i_1262-1120

ro.product.device=kumquat

ro.product.board=montblanc

ro.product.cpu.abi=armeabi-v7a

ro.product.cpu.abi2=armeabi

ro.product.manufacturer=Sony

ro.product.locale.language=en

ro.product.locale.region=US

ro.wifi.channels=

ro.board.platform=montblanc

# ro.build.product is obsolete; use ro.product.device

ro.build.product=kumquat

# Do not try to parse ro.build.description or .fingerprint

ro.build.description=ST25i-user 4.0.4 6.1.1.B.1.10 9bt3zw test-keys

ro.build.fingerprint=SEMC/ST25i_1262-1120/ST25i:4.0.4/6.1.1.B.1.10/9bt3zw:user/release-keys

ro.build.characteristics=default

ro.cm.device=kumquat

# end build properties

#JELLYBAM CUSTOM TWEAKS

ro.media.enc.jpeg.quality=100

ro.media.dec.jpeg.memcap=8000000

ro.media.enc.hprof.vid.bps=8000000

ro.media.dec.aud.wma.enabled=1

ro.media.dec.vid.wmv.enabled=1

ro.media.cam.preview.fps=0

ro.media.codec_priority_for_thumb=so

ro.media.enc.hprof.vid.bps=8000000

ro.media.enc.hprof.vid.fps=25

ro.service.swiqi.supported=true

persist.service.swiqi.enable=1

media.xloud.enable=1

media.xloud.supported=true

ro.max.fling_velocity=12000

ro.min.fling_velocity=8000

wifi.supplicant_scan_interval=180

windowsmgr.max_events_per_sec=200

pm.sleep_mode=1

af.resampler.quality=255

af.resample=48000

ro.audio.samplerate=48000

ro.audio.pcm.samplerate=48000

persist.dev.pm.dyn_samplingrate=1

persist.audio.samplerate=48000

persist.audio.pcm.samplerate=48000

persist.af.resampler.quality=255

persist.af.resample=48000

persist.tegra.nvmmlite=1

persist.audio.SupportHTCHWAEC=1

htc.audio.swalt.enable=1

htc.audio.swalt.mingain=14512

ro.audio.pcm.samplerate=48000

htc.audio.swalt.enable=1

htc.audio.swalt.mingain=14512

htc.audio.alc.enable=1

ro.semc.clearaudio.supported=true

persist.service.clearaudio.enable=1

ro.somc.dmnorm.supported=true

persist.service.dmnorm.enable=1

ro.sony.walkman.logger=1

ro.somc.clearphase.supported=true

persist.service.clearphase.enable=1

ro.semc.xloud.supported=true

persist.service.xloud.enable=1

ro.semc.sound_effects_enabled=true

ro.semc.enhance.supported=true

persist.service.enhance.enable=1

ro.HOME_APP_ADJ=1

media.stagefright.enable-player=true

media.stagefright.enable-meta=true

media.stagefright.enable-scan=false

media.stagefright.enable-http=true

media.stagefright.enable-rtsp=true

ro.media.capture.flash=led

ro.media.capture.flashMinV=3300000

ro.media.capture.torchIntensity=40

ro.media.capture.flashIntensity=70

ro.ril.disable.power.collapse=0

debug.performance.tuning=1

debug.composition.type=hw

debug.sf.hw=1

persist.android.strictmode=0

persist.sys.use_dithering=1

persist.sys.ui.hw=true

persist.sys.purgeable_assets=1

ro.com.google.networklocation=0

ro.config.nocheckin=1

ro.vold.umsdirtyratio=20

dalvik.vm.checkjni=false

dalvik.vm.execution-mode=int:jit

video.accelerate.hw=1

windowsmgr.max_events_per_sec=24

profiler.force_disable_err_rpt=1

profiler.force_disable_ulog=1

rild.libpath=/system/lib/libu300-ril.so

rild.libargs=-c UNIX -n 2 -p /dev/socket/at_core -s /dev/socket/at_core -i rmnet

# The OpenGL ES API level that is natively supported by this device.

# This is a 16.16 fixed point number

ro.opengles.version=131072

# debug.sf.hw=0 Use b2r2 as compositor in SurfaceFlinger

# debug.sf.hw=1 Use Mali as compositor in SurfaceFlinger

debug.sf.hw=1

# Android defaults EGL preserved swap behaviour

# This gives bad performace for deferred renderers

# such as Mali.

hwui.render_dirty_regions=false

# System props for SOLS

ro.semc.sols.product-code=105

ro.semc.sols.company-code=5

# STE: Low power audio - enable ULP mode

ste.nmf.autoidle=1

# STE: Address of DBus STE bus

ste.dbus.bus.address=unix:path=/dev/socket/dbus_ste

# STE: UNSOL_CALL_RING is only sent once from RIL.

# Android needs to generate more rings if needed.

ro.telephony.call_ring.multiple=false

# prop to indicate what kind of external memory the product have.

ro.semc.product.user_storage=emmc_only

ro.build.characteristics=nosdcard

# NFC

ro.nfc.on.default=false

ro.nfc.se.sim.enable=true

ro.nfc.se.smx.enable=false

ro.nfc.icon.enable=true

ro.nfc.vendor.name=nxp

#STE: Hardware video codecs configuration

ste.video.dec.mpeg4.in.size=8192

ste.video.enc.out.buffercnt=5

ste.video.dec.recycle.delay=1

#STE: Fast Dormancy Flag

# Fast Dormancy based on USB Tether Events and Screen States

ste.special_fast_dormancy=false

#Limitation on how much hwmem MM codecs should use

ste.video.decoder.max.hwmem=0x3600000

ste.video.decoder.max.res=1080p

ste.video.decoder.h264.max.lev=4.2

# System props for audio

persist.audio.hp=true

ro.service.swiqi.supported=false

persist.service.swiqi.enable=0

#

# ADDITIONAL_BUILD_PROPERTIES

#

ro.config.ringtone=Themos.ogg

ro.config.notification_sound=Proxima.ogg

ro.config.alarm_alert=Cesium.ogg

ro.jellybam.revision=4.1.0

ro.jellybam.version=jellybam_kumquat_jb-PAOKP10-4.1.0-20130116

ro.modversion=pa_i9100-2.54-08NOV2012-210506

ro.pa.family=pa_hdpi

ro.pa.version=2.54

ro.aokp.version=kumquat_jb-Milestone-1

keyguard.no_require_sim=true

ro.com.android.dateformat=MM-dd-yyyy

ro.carrier=unknown

persist.sys.usb.config=mtp

wifi.interface=wlan0

dalvik.vm.heapstartsize=5m

dalvik.vm.heapgrowthlimit=48m

dalvik.vm.heapsize=128m

ro.sf.lcd_density=240

ro.rommanager.developerid=cyanogenmod

ro.url.legal=http://www.google.com/intl/%s/mobile/android/basic/phone-legal.html

ro.url.legal.android_privacy=http://www.google.com/intl/%s/mobile/android/basic/privacy.html

ro.com.google.clientidbase=android-google

ro.com.android.wifi-watchlist=GoogleGuest

ro.setupwizard.enterprise_mode=1

ro.com.android.dataroaming=false

ro.cm.version=10.0.0-CM_kumquat.-NIGHTLY_20130116

dalvik.vm.lockprof.threshold=500

dalvik.vm.dexopt-flags=m=y

net.bt.name=Android

dalvik.vm.stack-trace-file=/data/anr/traces.txt

i understand that this rom is based in 6.1.1.B.1.10 ics? or i'm wrong?